If you add two pictures that are the very similar, you get something that has a little fuzz but basically makes a lot of sense. The first picture is a combination of the two pictures of the same boy.

The second combination is the two different boys. That still makes sense because the pictures are similar.

If your brain adds together fork, spoon, and knife, it too gets something that makes sense -- something long and thin, made of metal, use for eating, one end designed for holding.

next